* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5em;
}

.welcome-text {
    color: #666;
    margin-bottom: 30px;
    font-size: 1.1em;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    font-weight: bold;
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input[type="text"]:focus, input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
}

small {
    color: #888;
    font-size: 0.9em;
    display: block;
    margin-top: 5px;
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

.login-btn:hover {
    transform: translateY(-2px);
}

.hint {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: left;
}

.hint p {
    margin-bottom: 10px;
    color: #333;
}

.hint ul {
    list-style-type: none;
    padding-left: 0;
}

.hint li {
    margin-bottom: 8px;
    color: #666;
    padding-left: 20px;
    position: relative;
}

.hint li:before {
    content: "🎯";
    position: absolute;
    left: 0;
}

.error {
    color: #e74c3c;
    background: #ffeaea;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
}